commit des choses qu'on a faites avant

src/q3_4.m

src/work/analyse_delay.m

src/work/effet_delay.m

src/work/effet_delay_filtre.m

src/work/effet_reverb_FFT.m

src/work/q1.m

src/work/q1_1.m

src/work/q1_2.m

src/work/q1_3.m

src/work/q1_3.wav

src/work/q1_4.m

src/work/q1_4.wav

src/work/q1_5.m

src/work/q1_5.wav

src/work/q2_2.m

src/work/q2_2_bis.m

src/work/q3_19.m

src/work/q3_3.m

src/work/q3_3_bis.m

src/work/q3_5.m